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Balanced translocation is a structural chromosomal abnormality in which segments from two different chromosomes exchange places without any net gain or loss of genetic material. Because the overall genetic content remains intact, individuals with balanced translocations are typically healthy and may not show any physical or developmental abnormalities.

However, this rearrangement can have significant reproductive implications. During the formation of eggs or sperm (meiosis), chromosomes may segregate unevenly, leading to gametes with unbalanced genetic material. This can result in infertility, recurrent miscarriages, or the birth of a child with chromosomal disorders due to partial duplication or deletion of genetic segments.

Balanced translocations can be inherited from a parent who is also a carrier or may occur spontaneously during early cell division. Diagnosis is usually made through cytogenetic techniques such as karyotyping or advanced methods like fluorescence in situ hybridization (FISH).

Although no treatment is required for carriers themselves, genetic counseling is strongly recommended to assess reproductive risks. Assisted reproductive techniques, including preimplantation genetic testing (PGT), may help reduce the likelihood of passing on unbalanced chromosomal abnormalities to offspring.